Sand-blast apparatus.



PATEN TED MAR. 5, 1907.

E. A. ARGOUET. SAND BLAST APPARATUS.

APPLICATION FILED MAR. 22, l-9Q6.

UNITED STATES PATENT OFFICE.

EDWARD, A. ARCO'L'ET, or CHICAGO, ILLINOIS.

SANDs-BLAST APPARATUS.

Specification of Letters Patent.

Patented March 5,1907.

Application filed March 22;].906. Serialifio. 307,337;

To all om it may concern;

Be it known that I", EDWARD .-i. i-incoUET, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements 1n Sand-Blast Machines,

:of which the followmg is a full. clear, and exact specification.

This invention relates t0 improvements in sand-blast machines particularly adapted for abrading purposes or for cutting letters, de-

signs, &c., upon glass or othersurfaces; and the ob ect of the same is to construct an m means of which nozzle the material maybe easily directed.

A further object. is to construct an im proved portable-device of this character for utilizing compressed air which is directed into a tank containing an a rading material, fordischarging the same tlieref-ron1,-an( l also to provide improved means for regulating the discharge of the mateJial.

A further object is to construct an improved portable device of thisv character which will be light in eight, simple and durable in construction, cheap to manufacture, and efficient in operation.

To the attainment of these ends and the.

accomplishment of other new and useful of;- jects, as will a ipeanthe invention cons sts in the features of novel y in the construction, combination; and angement of the several parts hereinafter more fully descri" ed and claimed, and shownin the accompanyingdrawing, illustrating an e empliiication of the invention, and in which'.

Figure 1 is a .vertical section of a machine constructed in accordance with the principles of this invention. Fig.2 is sectional view on line 2 2 of Fig. '1. Fig. 3 is an enla 'ged detail sectional view of the regulatingvalve. Figytis a detail view of the locking means for holding and securing the valve in the desired position.

Referring more-particularly to the drawings, the numeral 10 designates a closed tank constructed of any suitable material and of any desired size and configuration. A suita'vle threaded opening may be provided-in the topof the tank, whichis adapted. to be closed by aplug or cap 11, and through said opening the sand or abrading material is adaptedto be inserted into the tank.

'i he bottom is preferably .convexed and is provided with acentrally-disposed' opening,

to which'is secured one end of a tube or p pe 12. '1 he. tank is also provided with an opening l3'inits wall, which is located, adjacent the bottom.

preferably,

'i he support 11, constructed of any suit I able material, is provided for the tank and is preferably in t A? form of an open cylinder or ring-and secured adJac'entthe top and on'the inside thereof on brackets or lugs 15. This supportis of the same shape as the tank and of a slightly larger diameter, so that the lower extremity of the tank may enter there-' in and rest upon the brackets or lugs '15, any number of wl'iich latter may beprovided suitable forthe purpose. 4

Secured to the free extremity of'the pipe or tube 12, whichdepends from the bottom of the tank 10 and in any suitable manner,.

such as by screw-threads, is a coupling 16},

- which is provided withan opening 17, ex-

ten-iingthrough the bottom thereof. A

bushingor packing 18 is secured within the o penmg 17 in any suitable manner, such as screw-threads, and said bushing is provided through which passes a valve stem or rod 19.

A valve 20 is carried'by' one end of the rod or stem 19, and said valve is located within. the"coupiing a'njt is adapted to be seated.

against the adjacent: end of the tube or pipe 12' for a purpose to be set forth.

\Vithin the support 14, and at a suitable point is an arm or bracket 21, to which one out of a bar or lever 22 is pi'votally connected. 'ihis rod orabar is preferably located below the coupling 16 mid is pivo'tally connected intermediateits ends to the valve-stem or rod 19 in any suitable manner, preferably by means of a piv;.;t-pin' 23'. if desired,'t he eX- treinity of the valve rod-or stem 19 may be:

bifurcated to receive the lever or bar22.

"i he free end of the lever or bar 22projects through anopening itm the support, which is preferably locateddlametrically opposite.

the bracket 21, and said end projects beyond the s'upportto form a handle- IOO . l with an opening ext-en;.1ng therethro'ugh and Secured to the outer face of the support and-over the opening 24 therein is a plate 25, which is provided with a slot 26, registering with the slot 24, and tfhrough'this slot 26 the end of the lever 01' bar 22 passes One Wall of the slot is provided with a rack or teeth 27,

which project into the slt'26. 4

-'l he coupling '1 6 is also provided with lateral openings 28, preferably arranged diametrically opposite each other, and passing throughvsui'table' openings in the support .14-

" are pipes 29 30, Wh1ch have one of their extremities secured within any desired manner, preferably by means of screw-threads. 'ihenee ends of these pipesproject beyond'the support, and COllPlGdtO the end of the pipe 29 in any suitable inanner, such as an ordinary coupling 30, is one' the openings 28 in ,end of a flexiblepipe 31, to the I'ree'end of mitted into the pipe 30.

which is adischa'rganozzle 32. Exte'nding from the openingl'3 in the wall of the'tank' 10 is a pipe 33, the free'end of,

which is connected to and communicates with the'pipe by means of the coupling 34.

The free extremity of the pipe 30 is con-' nected in any desired manner to any suitable source ofs'upply or compressed-air tank.

In operation the tank is filled with sand or abrading material, the valve 20 havingbeen firs closed and secured against its seat by the.

engagement of the rod or lever 22 Withv the teeth 27. After filling the valve 20' may be adjusted to permit the desired amount ofmaterial to'pass therethrough and secured in.-

position'by engaging the respective tooth 27 with the rod or lever 22 Air is then ad- Upon reaching the coupling 34 the airwill be divided, a portion, passing directly th'rough'the pipe 30, coupling 16, pipe 29, and nozzle-32, carrying with it the sand or abrading material which has" been fed from the tank through the pipe 12, and into'the coupling 16 and discharging the same with greatforce out of the nozzle 32 and .[npon the surfaceto be operated upon, the other: portion '0" the air being directed into thetank for overcoming'the upward pressure exerted by the air passing through the pipes 30 29- and for feeding the, material thereto, the inclination of 1e bottomj'ofthe tanln serving to assist in feeding the' abrading material. J

I t' is to be understood that it is not'desired .to be limited to'the exact. details of construction or arrangement of he several parts, as-

theItank is adapted to rest,

of MarcnA. D. 1906.)

' seam e numerous changesinay be made therein with out departing from-the, spir itqf the; invention.

' What I claiin asnew e 1. In adevi ce of-the cl ass (described, the combinationjof alcl osed tank,- a support for the tank, 'an'air-pipe, an'outlet-pipe leading from the tankand communicating-with the air-pipe, a valve "adaptedite close the en'dfof the outlet-pipe, a leverxpi'votedto thesupe port, a pivotal connection between the lever and valve, a rack on the support adapted'to be engaged by the leverfo'r securing the; valve in position, and a connection leading from the pipe and openinginto the tank.

2. in a deviceef the-class" described, combination of a closed tank, a support for? thetank, an airpipe, piiovided withafnozzle on one end, an outle t-pipe'depending from' 'the bottom of t e I with the air-pipe, a valve Vadaptedt'to' tank andcommu' 'icating I lose the end of the outle't-pipe,-a lever pivoted-by one end'to thesuppo'rt, a pivotal connection between the, le /errand valve, a rack secured to the support and adapted to be engaged by the lever for holding thejvalve in position,

anda connection leading from the air-pipe and communicating with the tank adjacent the bottomthereofi 3'. In a deviceoftheclassdescribed, the

combination of a t'ank, a 'support upon which outlet-pipe de' pending from the bottom of the tank, a coupiling secured to the free end of the pipe and provided with fan opening-in the bottom thereof opposite the pipe, a reniovablebushing within'th-eopening,'a valve-rod passing through the bushing, a valve on: the rod adapted to be inserted in the coupling through I E. A. ARCGUET. .Witnesses:

FR NQIs-AQ HoP' INs, J. H. JooHUM,-Jr. 

